Deno’s Garden

Ornithogalum umbellatum

Genus Ornithogalum

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 56 days to germinate.

67% germination in 56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ornithogalum p. 183Public domain
Show the original text
Ornithogalum (Liliaceae). James Forrest reported that 0. umbellatum germ. 40(4/6 in 8th w) and 70(1/4 in 8th w)-40(1/4).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ornithogalum p. 183. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Protocol 2

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around November 10, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    1/4 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 56 days to germinate.

25% germination in 56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ornithogalum p. 183Public domain
Show the original text
Ornithogalum (Liliaceae). James Forrest reported that 0. umbellatum germ. 40(4/6 in 8th w) and 70(1/4 in 8th w)-40(1/4).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ornithogalum p. 183. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.